Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a média de down (até kbit/s) quando o provedor é willy.tel e o up (kbit/s) é superior a 1984?
 ###Tabelas: CREATE TABLE number_of_children_involved_in_ilo_categories_of_work_by_age_and_gender (number_of_children_involved_in_ilo_categories_of_work_by_age_and_gender_id AUTO_INCREMENT PRIMARY KEY, All Children ('000s) INT, Economically Active Children ('000s) INT, Economically Active Children (%) INT, Child Labour ('000s) INT, Child Labour (%) INT, Children In Hazardous Work ('000s) INT, Children In Hazardous Work (%) INT) CREATE TABLE house_of_schleswig-holstein-sonderburg-glücksburg (house_of_schleswig-holstein-sonderburg-glücksburg_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Birth VARCHAR, Marriage VARCHAR, Became Consort VARCHAR, Ceased to be Consort VARCHAR, Spouse VARCHAR) CREATE TABLE retired (retired_id AUTO_INCREMENT PRIMARY KEY, Make/ Model VARCHAR, Length VARCHAR, Year INT, Numbers (Quantity Ordered) VARCHAR, Fuel Propulsion VARCHAR, Year Retired VARCHAR) CREATE TABLE germany (germany_id AUTO_INCREMENT PRIMARY KEY, DSL Type VARCHAR, Provider VARCHAR, Resale VARCHAR, Down (up to kbit/s) INT, Up (up to kbit/s) INT) CREATE TABLE 1928 (1928_id AUTO_INCREMENT PRIMARY KEY, meas. num INT, passed VARCHAR, YES votes INT, NO votes INT, % YES VARCHAR, Const. Amd.? VARCHAR, type VARCHAR, description VARCHAR)  
SELECT AVG Down (up to kbit/s) FROM germany WHERE Provider = willy.tel AND Up (up to kbit/s) > 1984